MG resulted from the binding of autoantibodies to proteins involved in signaling at the neuromuscular junction, is an autoimmune syndrome caused by the failure of neuromuscular transmission.[15] Cholinesterase inhibitors are the first-line drug to relieve symptoms in general MG while immunosuppression with steroids, azathioprine, ciclosporin, tacrolimus, and etc are applied as definitive therapy. Here, BCHE is linked to myasthenia gravis.